A glacial lake outburst flood (GLOF) triggered a rapid surge in water levels along the Teesta River basin in Sikkim, India at approximately 01:30 LT on Wednesday, October 4, 2023. The water levels soared to heights of 5 – 6 m (15 – 20 feet), resulting in significant infrastructure damage, at least 8 fatalities, and more than 60 individuals reported missing.